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404be7f302
Encapsulate logic for reading .y4m video files in a single class. We currently have spread out logic for opening .y4m files with partial parsing. This CL consolidates this logic into a single class with a well defined interface. Change-Id: Id61673b3c95a0053b30e95b4cf382e1c6b05fc30 Bug: webrtc:9642 Reviewed-on: https://webrtc-review.googlesource.com/94772 Reviewed-by: Patrik Höglund <phoglund@webrtc.org> Reviewed-by: Paulina Hensman <phensman@webrtc.org> Commit-Queue: Magnus Jedvert <magjed@webrtc.org> Cr-Commit-Position: refs/heads/master@{#24398}
71 lines
2.1 KiB
C++
71 lines
2.1 KiB
C++
/*
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* Copyright (c) 2018 The WebRTC project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#include "rtc_tools/y4m_file_reader.h"
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#include "test/gtest.h"
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#include "test/testsupport/fileutils.h"
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namespace webrtc {
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namespace test {
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class Y4mFileReaderTest : public ::testing::Test {
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public:
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void SetUp() override {
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const std::string filename =
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TempFilename(webrtc::test::OutputPath(), "test_video_file.y4m");
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// Create simple test video of size 6x4.
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FILE* file = fopen(filename.c_str(), "wb");
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ASSERT_TRUE(file != nullptr);
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fprintf(file, "YUV4MPEG2 W6 H4 F57:10 C420 dummyParam\n");
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fprintf(file, "FRAME\n");
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const int width = 6;
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const int height = 4;
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const int i40_size = width * height * 3 / 2;
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for (int i = 0; i < i40_size; ++i)
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fputc(static_cast<char>(i), file);
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fprintf(file, "FRAME\n");
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for (int i = 0; i < i40_size; ++i)
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fputc(static_cast<char>(i + i40_size), file);
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fclose(file);
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// Open the newly created file.
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video = webrtc::test::Y4mFile::Open(filename);
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ASSERT_TRUE(video);
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}
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rtc::scoped_refptr<webrtc::test::Y4mFile> video;
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};
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TEST_F(Y4mFileReaderTest, TestParsingFileHeader) {
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EXPECT_EQ(6, video->width());
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EXPECT_EQ(4, video->height());
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EXPECT_EQ(5.7f, video->fps());
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}
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TEST_F(Y4mFileReaderTest, TestParsingNumberOfFrames) {
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EXPECT_EQ(2u, video->number_of_frames());
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}
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TEST_F(Y4mFileReaderTest, TestPixelContent) {
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int cnt = 0;
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for (const rtc::scoped_refptr<I420BufferInterface> frame : *video) {
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for (int i = 0; i < 6 * 4; ++i, ++cnt)
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EXPECT_EQ(cnt, frame->DataY()[i]);
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for (int i = 0; i < 3 * 2; ++i, ++cnt)
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EXPECT_EQ(cnt, frame->DataU()[i]);
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for (int i = 0; i < 3 * 2; ++i, ++cnt)
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EXPECT_EQ(cnt, frame->DataV()[i]);
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}
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}
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} // namespace test
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} // namespace webrtc
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